CN217282243U - Remote wireless charger for mobile phone - Google Patents

Remote wireless charger for mobile phone Download PDF

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Publication number
CN217282243U
CN217282243U CN202122521963.4U CN202122521963U CN217282243U CN 217282243 U CN217282243 U CN 217282243U CN 202122521963 U CN202122521963 U CN 202122521963U CN 217282243 U CN217282243 U CN 217282243U
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microstrip line
microstrip
port
microwave
capacitor
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CN202122521963.4U
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李晓宁
付宇飞
单思哲
唐伟成
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University of Electronic Science and Technology of China
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University of Electronic Science and Technology of China
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Abstract

The utility model discloses a remote mobile phone wireless charger, which comprises a microwave transmitting end and a microwave receiving end which are communicated by high-frequency microwave; the microwave transmitting end comprises a microwave power supply, a microwave generator and a microwave emitter which are connected in sequence; the microwave receiving end comprises a receiving antenna, a rectification conversion circuit, a voltage stabilizing circuit and a data line interface which are connected in sequence. The charger structure realizes the charging of the mobile phone at a longer distance, so that the charging process gets rid of the constraint of a fixed position, the convenience is improved, the charging efficiency is greatly improved, the charger structure can be used in areas such as factories and disaster relief sites, and can supply power for special equipment and avoid the contact of personnel with dangerous environments.

Description

Remote wireless charger for mobile phone
Technical Field
The utility model belongs to the technical field of wireless microwave, concretely relates to utilize microwave technology to realize the design of remote cell-phone wireless charger.
Background
With the development and popularization of the wireless charging technology of the mobile phone, the application scenes of the wireless charging of the mobile phone are more and more extensive. The wireless charging technology of the mobile phone provides a charging function, the wireless charging equipment on the market mainly adopts the electromagnetic induction and magnetic coupling technology at present, the charging distance is short, and the remote charging requirement of a user is difficult to meet.
SUMMERY OF THE UTILITY MODEL
Not enough to the above-mentioned among the prior art, the utility model provides a wireless charger of remote cell-phone has solved traditional wireless charging process of cell-phone, receives the problem that fixed position constraint is difficult to the remote charging of cell-phone.
In order to achieve the purpose of the invention, the utility model adopts the technical scheme that: a remote mobile phone wireless charger comprises a microwave transmitting end and a microwave receiving end which are communicated through high-frequency microwaves;
the microwave transmitting end comprises a microwave power supply, a microwave generator and a microwave emitter which are connected in sequence; the microwave receiving end comprises a receiving antenna, a rectification conversion circuit, a voltage stabilizing circuit and a data line interface which are connected in sequence.
Further, the microwave power supply is connected with a mains supply socket;
and the data line interface is connected with the mobile phone charging interface.
Further, the microwave receiving end is packaged in a shell with a proper size, and a clamping groove for placing a mobile phone is formed in the shell;
the receiving antenna is embedded on the outer surface of the shell.
Further, the casing is the cell-phone shell that is adapted to the cell-phone that charges.
Furthermore, the receiving antenna comprises two microstrip patch antennas, and the two microstrip patch antennas are respectively connected with a rectification conversion circuit.
Further, the rectification and transformation circuit comprises a microstrip line TL 9;
one end of the microstrip line TL9 is connected with one end of a square bonding pad V1, the other end of the microstrip line TL9 is respectively connected with one end of a microstrip GAP GAP1, one end of a resistor R1, one end of a capacitor C1, one end of a capacitor C2, one end of a capacitor C3 and one end of a capacitor C4, the other end of the microstrip GAP GAP1, the other end of the resistor R1, the other end of the capacitor C1, the other end of the capacitor C2, the other end of the capacitor C3 and the other end of the capacitor C4 are all connected with one end of a microstrip line TL8, the other end of the microstrip line TL8 is connected with a first port of a T-shaped microstrip line TEE2, a second port of the microstrip line TEE2 is suspended, a third port of the T-shaped microstrip line TEE2 is connected with one end of a microstrip line TL7, the other end of the microstrip line TL7 is connected with one end of an inductor L1 and one end of a microstrip GAP2 respectively, the other end of the inductor L1 and the other end of the microstrip GAP GAP2 are both connected with one end of a microstrip line TL 6;
the other end of the microstrip line TL6 is connected with a first port of a T-shaped microstrip line TEE1, a third port of the T-shaped microstrip line TEE1 is respectively connected with one end of a microstrip GAP GAP3 and one end of a capacitor C4, the other end of the microstrip GAP GAP3 and the other end of the capacitor C4 are both connected with one end of a microstrip line TL2, the other end of the microstrip line TL2 is connected with an output port of a smooth microstrip line TAPER1, an input port of the smooth microstrip line TAPER1 is connected with one end of a microstrip line TL1, the other end of the microstrip line TL1 is grounded, a second port of the T-shaped microstrip line TEE1 is connected with one end of a microstrip line TL3, the other end of the TL3 is connected with a first port of a cross microstrip line TEE3, a second port of the cross microstrip line TEE3 is connected with one end of a microstrip line TL13, the other end of the TL13 is grounded, a fourth port of the cross microstrip line TEE3 is connected with one end of a microstrip line 12, the other end of the microstrip line TL12 is grounded, a third port of the crossed microstrip line TEE3 is connected with one end of a microstrip line TL10, the other end of the microstrip line TL10 is respectively connected with the anode of a diode D1 and one end of a microstrip GAP GAP4, the other end of the microstrip GAP GAP4 and the cathode of the diode D1 are both connected with one end of the microstrip line TL11, and the other end of the microstrip line TL11 is connected with one end of a square pad V2;
a second port of the T-shaped microstrip line TEE2 is used as an anode of an output end of the rectification and transformation circuit, the other end of the square bonding pad V1 and the other end of the square bonding pad V2 are used as a cathode of the output end of the rectification and transformation circuit, and the other end of the microstrip line TL1 is used as an input end of the rectification and transformation circuit.
Further, the diode D1 is a schottky diode with model HSMA-282 b.
Furthermore, the voltage stabilizing circuit is a 9-36V to 5V DC/DC voltage stabilizing circuit, and an output port of the voltage stabilizing circuit is a USB female port connected with the data interface.
The utility model has the advantages that:
(1) the utility model provides a wireless charger structure has realized that the cell-phone of more remote distance charges, makes the charging process break away from the constraint of fixed position, has improved the convenience.
(2) Based on the utility model discloses a structural design, the cell-phone charges and will no longer need a fixed charging plug of every cell-phone, and a emission source just can realize charging simultaneously for many cell-phones, has improved charge efficiency greatly, charges conveniently at public occasion like the travel at railway station for the promotion user and has given better solution.
(3) The charger can be used in areas such as factories and disaster relief sites, supplies power to special equipment, and avoids the contact of personnel and dangerous environments.
Drawings
Fig. 1 is a block diagram of the remote wireless charger for mobile phone according to the present invention.
Fig. 2 is the structural schematic diagram of the microwave receiving terminal packaged in the casing.
Fig. 3 is a schematic view of the receiving antenna embedded on the outer surface of the housing according to the present invention.
Fig. 4 is a schematic diagram of a rectification conversion circuit provided by the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and various changes will be apparent to those skilled in the art as long as they are within the spirit and scope of the present invention as defined and defined by the appended claims, and all inventions contemplated by the present invention are protected.
In an embodiment of the present invention, there is provided a remote wireless charger for mobile phone as shown in fig. 1, including a microwave transmitting terminal and a microwave receiving terminal through high frequency microwave communication;
the microwave transmitting end comprises a microwave power supply, a microwave generator and a microwave emitter which are connected in sequence; the microwave receiving end comprises a receiving antenna, a rectification conversion circuit, a voltage stabilizing circuit and a data line interface which are connected in sequence.
In the embodiment of the present invention, the microwave power supply, the microwave generator and the microwave emitter are conventional structures in the art, and the specific implementation manner of the functions thereof is well known to those skilled in the art, and will not be described herein again.
In the embodiment of the utility model, the microwave power supply is connected with the commercial power socket; and the data line interface is connected with the mobile phone charging interface. The microwave power supply connected with a mains supply socket is used as a power supply, and finally, the microwave energy is converted into electric energy to supply power for the mobile phone; and the data line interface can be the USB interface, can connect various types of charging wire (like Type-C charging wire).
In the embodiment of the present invention, the microwave receiving end is packaged in a housing with a suitable size, and the housing is provided with a slot for placing a mobile phone; the receiving antenna is embedded on the outer surface of the shell. Specifically, as shown in fig. 2-3, the casing can be for the adaptation in the cell-phone shell of the cell-phone that charges, be about to the charger design for cell-phone shell molding, one side has the draw-in groove in order to fix the cell-phone inside, the another side as the cell-phone shell back, can design for fretwork molding, exposes the antenna surface and guarantees that receiving efficiency is taken into account beautifully, and this shell can use the SD printer to print, also can be worked instead of by the factory.
The embodiment of the utility model provides an in, receiving antenna includes two microstrip patch antenna, two a rectification transform circuit is connected respectively to microstrip patch antenna, and wherein, receiving antenna is the microstrip patch antenna that the cost of manufacture is low efficient, and the antenna can be confirmed relevant parameter and establish simulation model by design software HFSS emulation, if antenna simulation effect reaches the design target, can hand over the antenna design file by the producer and make and obtain the material object, adopts two 5 cm's microstrip patch antenna in this embodiment.
In the embodiment of the present invention, as shown in fig. 4, the rectification and transformation circuit includes a microstrip line TL 9;
one end of the microstrip line TL9 is connected with one end of a square bonding pad V1, the other end of the microstrip line TL9 is respectively connected with one end of a microstrip GAP GAP1, one end of a resistor R1, one end of a capacitor C1, one end of a capacitor C2, one end of a capacitor C3 and one end of a capacitor C4, the other end of the microstrip GAP GAP1, the other end of the resistor R1, the other end of the capacitor C1, the other end of the capacitor C2, the other end of the capacitor C3 and the other end of the capacitor C4 are all connected with one end of a microstrip line TL8, the other end of the microstrip line TL8 is connected with a first port of a T-shaped microstrip line TEE2, a second port of the microstrip line TEE2 is suspended, the third port of the T-shaped microstrip line TEE2 is connected with one end of a microstrip line TL7, the other end of the microstrip line TL7 is respectively connected with one end of an inductor L1 and one end of a microstrip GAP2, the other end of the inductor L1 and the other end of the microstrip GAP GAP2 are both connected with one end of a microstrip line TL 6;
the other end of the microstrip line TL6 is connected with a first port of a T-shaped microstrip line TEE1, a third port of the T-shaped microstrip line TEE1 is respectively connected with one end of a microstrip GAP GAP3 and one end of a capacitor C4, the other end of the microstrip GAP GAP3 and the other end of the capacitor C4 are both connected with one end of a microstrip line TL2, the other end of the microstrip line TL2 is connected with an output port of a smooth microstrip line TAPER1, an input port of the smooth microstrip line TAPER1 is connected with one end of a microstrip line TL1, the other end of the microstrip line TL1 is grounded, a second port of the T-shaped microstrip line TEE1 is connected with one end of a microstrip line TL3, the other end of the TL3 is connected with a first port of a cross microstrip line TEE3, a second port of the cross microstrip line TEE3 is connected with one end of a microstrip line TL13, the other end of the TL13 is grounded, a fourth port of the cross microstrip line TEE3 is connected with one end of a microstrip line 12, the other end of the microstrip line TL12 is grounded, a third port of the crossed microstrip line TEE3 is connected with one end of a microstrip line TL10, the other end of the microstrip line TL10 is respectively connected with the anode of a diode D1 and one end of a microstrip GAP GAP4, the other end of the microstrip GAP GAP4 and the cathode of the diode D1 are both connected with one end of the microstrip line TL11, and the other end of the microstrip line TL11 is connected with one end of a square pad V2;
a second port of the T-shaped microstrip line TEE2 is used as an anode of an output end of the rectification and transformation circuit, the other end of the square bonding pad V1 and the other end of the square bonding pad V2 are used as a cathode of the output end of the rectification and transformation circuit, and the other end of the microstrip line TL1 is used as an input end of the rectification and transformation circuit.
The electric arrangement conversion circuit is one of the most important parts in the whole charger, the quality of the rectification conversion circuit can determine the discharging of the charger, the whole charger needs to meet the wireless charging purpose, so the whole system needs to meet the characteristics of small size and flexibility, the rectification conversion circuit needs to be miniaturized as much as possible, in addition, the efficiency of the rectification circuit needs to be improved as much as possible in order to meet the requirement of remote energy transmission, on the basis of balancing the size and the efficiency, the F-type high-efficiency rectification circuit is provided in the embodiment, the F-type rectification circuit is different from a common rectification circuit, the output current of the F-type rectification circuit is half sine wave, and the voltage of the F-type rectification circuit is approximate to square wave. When the circuit is applied to circuit simulation, the impedance of second-order, fourth-order and other even-order harmonics is close to zero and is approximate to short circuit; and the impedance of odd harmonics such as third order, fifth order and the like is close to infinity and is approximate to an open circuit. The circuit mainly comprises a low-pass filter, a matching circuit (TL 7-TL 9, GAP1, R1, C1-C4 and TEE2), a rectifier diode D1 and a through filter, wherein the low-pass filter filters an RF signal from a receiving antenna, energy of a working frequency band passes through the low-difference loss and blocks other components, the harmonic component is rectified, the rectifier diode converts the RF signal into DC, the pulse component of the DC voltage after passing is large, and smooth filtering is needed to obtain stable DC voltage.
In the above circuit in this embodiment, the rectifying diode determines the performance of the rectifying circuit, and it is important to select a suitable diode for different applications, and the diode D1 in this embodiment is a schottky diode with model number HSMA-282b, and the SBD has a barrier of semiconductor-metal junction, small junction capacitance and a barrier height lower than that of the PN junction, compared with the classical PC junction diode. Since the SBD is a majority carrier device, there is no reverse recovery time of minority carriers, and its reverse potential barrier is thin, and the reverse leakage current is larger than that of a PN junction diode, it is used for rectification and detection.
The embodiment of the utility model provides an in, voltage stabilizing circuit changes 5V's DCDC voltage stabilizing circuit for 9 ~ 36V, and its output port is USB female mouthful and is connected with data interface, and voltage stabilizing circuit plays and converts 9-36V's input voltage into 5V's steady voltage output, and this design makes most cell-phones on the existing market can normally carry out 5V constant voltage charging and protect the cell-phone lithium cell, and this circuit can design for DCDC voltage stabilizing circuit, and efficiency should not be less than 97%.
In an embodiment of the present invention, the working process of the charger is:
after the microwave transmitting end starts to work, the microstrip antenna in the receiving end starts to receive microwave energy in the air, the microwave energy is converted into a 5V electric signal through the rectification and voltage stabilizing circuit, when the mobile phone is placed in the mobile phone shell and connected with the mobile phone shell through the USB data line, the receiving end supplies power to the mobile phone, and the mobile phone starts to charge.

Claims (7)

1. A remote mobile phone wireless charger is characterized by comprising a microwave transmitting end and a microwave receiving end which are communicated through high-frequency microwaves;
the microwave transmitting end comprises a microwave power supply, a microwave generator and a microwave emitter which are sequentially connected; the microwave receiving end comprises a receiving antenna, a rectification conversion circuit, a voltage stabilizing circuit and a data line interface which are connected in sequence;
the rectification and transformation circuit comprises a microstrip line TL 9;
one end of the microstrip line TL9 is connected with one end of a square bonding pad V1, the other end of the microstrip line TL9 is respectively connected with one end of a microstrip GAP GAP1, one end of a resistor R1, one end of a capacitor C1, one end of a capacitor C2, one end of a capacitor C3 and one end of a capacitor C4, the other end of the microstrip GAP GAP1, the other end of the resistor R1, the other end of the capacitor C1, the other end of the capacitor C2, the other end of the capacitor C3 and the other end of the capacitor C4 are all connected with one end of a microstrip line TL8, the other end of the microstrip line TL8 is connected with a first port of a T-shaped microstrip line TEE2, a second port of the microstrip line TEE2 is suspended, a third port of the T-shaped microstrip line TEE2 is connected with one end of a microstrip line TL7, the other end of the microstrip line TL7 is connected with one end of an inductor L1 and one end of a microstrip GAP2 respectively, the other end of the inductor L1 and the other end of the microstrip GAP GAP2 are both connected with one end of a microstrip line TL 6;
the other end of the microstrip line TL6 is connected with a first port of a T-shaped microstrip line TEE1, a third port of the T-shaped microstrip line TEE1 is respectively connected with one end of a microstrip GAP GAP3 and one end of a capacitor C4, the other end of the microstrip GAP GAP3 and the other end of the capacitor C4 are both connected with one end of a microstrip line TL2, the other end of the microstrip line TL2 is connected with an output port of a smooth microstrip line TAPER1, an input port of the smooth microstrip line TAPER1 is connected with one end of a microstrip line TL1, the other end of the microstrip line TL1 is grounded, a second port of the T-shaped microstrip line TEE1 is connected with one end of a microstrip line TL3, the other end of the TL3 is connected with a first port of a cross microstrip line TEE3, a second port of the cross microstrip line TEE3 is connected with one end of a microstrip line TL13, the other end of the TL13 is grounded, a fourth port of the cross microstrip line TEE3 is connected with one end of a microstrip line 12, the other end of the microstrip line TL12 is grounded, a third port of the crossed microstrip line TEE3 is connected with one end of a microstrip line TL10, the other end of the microstrip line TL10 is respectively connected with the anode of a diode D1 and one end of a microstrip GAP GAP4, the other end of the microstrip GAP GAP4 and the cathode of the diode D1 are both connected with one end of the microstrip line TL11, and the other end of the microstrip line TL11 is connected with one end of a square pad V2;
a second port of the T-shaped microstrip line TEE2 is used as an anode of an output end of the rectification and transformation circuit, the other end of the square bonding pad V1 and the other end of the square bonding pad V2 are used as a cathode of the output end of the rectification and transformation circuit, and the other end of the microstrip line TL1 is used as an input end of the rectification and transformation circuit.
2. The remote wireless handset charger of claim 1 wherein the microwave power source is connected to a mains power outlet;
and the data line interface is connected with the mobile phone charging interface.
3. The remote wireless handset charger of claim 1 wherein the microwave receiving terminal is enclosed in a housing of suitable size, said housing having a slot for receiving a handset;
the receiving antenna is embedded on the outer surface of the shell.
4. The remote wireless handset charger of claim 3 wherein the housing is a handset housing adapted to charge a handset.
5. The remote wireless charger for mobile phone according to claim 1, wherein said receiving antenna comprises two microstrip patch antennas, and a rectifying and transforming circuit is connected to each of said two microstrip patch antennas.
6. The remote wireless handset charger of claim 1 wherein the diode D1 is a schottky diode of type HSMA-282 b.
7. The remote wireless charger for mobile phones according to claim 1, wherein the voltage regulator circuit is a 9-36V to 5V DC/DC voltage regulator circuit, and the output port of the voltage regulator circuit is a USB female port connected to the data interface.
CN202122521963.4U 2021-10-20 2021-10-20 Remote wireless charger for mobile phone Active CN217282243U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122521963.4U CN217282243U (en) 2021-10-20 2021-10-20 Remote wireless charger for mobile phone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122521963.4U CN217282243U (en) 2021-10-20 2021-10-20 Remote wireless charger for mobile phone

Publications (1)

Publication Number Publication Date
CN217282243U true CN217282243U (en) 2022-08-23

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Application Number Title Priority Date Filing Date
CN202122521963.4U Active CN217282243U (en) 2021-10-20 2021-10-20 Remote wireless charger for mobile phone

Country Status (1)

Country Link
CN (1) CN217282243U (en)

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